/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/SimplexVectorized.h
Based on an algorithm in Real Time Collision Detection - Ericson (very close to that) Using the same variable name conventions for easy reference
namespace Chaos { template<bool CalculatExtraInformation> [VectorRegister4Float](API\Runtime\Core\Math\VectorRegister4Float) Chaos::TriangleSimplexFindOriginFast ( [VectorRegister4Float](API\Runtime\Core\Math\VectorRegister4Float) *__restrict Simplex, [VectorRegister4Int](API\Runtime\Core\Math\VectorRegister4Int) &__restrict NumVerts, [VectorRegister4Float](API\Runtime\Core\Math\VectorRegister4Float) &__restrict OutBarycentric, [VectorRegister4Float](API\Runtime\Core\Math\VectorRegister4Float) *__restrict As, [VectorRegister4Float](API\Runtime\Core\Math\VectorRegister4Float) *__restrict Bs ) }